Airwell AW-WHPMA18-H93, Installation Manual

Page: 15 / 460

11
8.1 Application 1
Space heating with a room thermostat connected to the unit.
The application examples given below are for illustration only.
8 TYPICAL APPLICATIONS
Unit operation and space heating
：
When a room thermostat is connected to the unit and when there is a heating request from the room thermostat, the unit will
start operating to achieve the target water flow temperature as set on the user interface. When the room temperature is above
the thermostat set point in the heating mode, the unit will stop operating. The circulation pump (1.7) and (10) will also stop
running. The room thermostat is used as a switch here.
The volume of balance tank(8) should be greater than 40L. The drain valve (6) should be installed at the lowest positon
of the system. Pump_o (10) should be controlled by outdoor unit and connect to corresponding port in the outdoor
unit(
refer to 9.7.6 Connection for other components/For outside circulation pump P_o ).
NOTE
1
1.1
1.2
1.3
1.4
1.5
1.6
1.7
2
3
Outdoor unit
Manometer
Pressure relief valve
Expansion vessel
Plate heat exchanger
Air purge valve
Flow switch
P_i: Circulation pump inside the unit
Y-shape filter
Stop valve (field supply)
Assembly unit Assembly unit Coding Coding
4
5
6
7
8
8.1
8.2
9
10
11
FHL 1…n
Wired controller
Room thermostat (field supply)
Drain valve (field supply)
Fill valve (field supply)
Balance tank (field supply)
Air purge valve
Drain valve
Expansion vessel (field supply)
P_o: Outside circulation pump (field supply)
Collector / distributor (field supply)
Floor heating loop (field supply)
8.1
8.2
2 3
6 7
8
FHL1 FHL2 FHLn ----
----
9
T
10
11
4
5
1
1.5
1.4
1.2
1.3
1.7
1.6
1.1